Auto merge of #84864 - Mark-Simulacrum:stable-next, r=Mark-Simulacrum 1.52.0

[stable] 1.52.0 release

This includes the release notes (#84183) as well as cherry-picked commits from:

* [beta] revert PR #77885 #84710
* [beta] remove assert_matches #84759
* Revert PR 81473 to resolve (on beta) issues 81626 and 81658. #83171
* [beta] rustdoc revert deref recur #84868
*  Fix ICE of for-loop mut borrowck where no suggestions are available #83401

Additionally in "fresh work" we're also:

* reverting: directly expose copy and copy_nonoverlapping intrinsics #81238 to avoid https://github.com/rust-lang/rust/issues/84297 on 1.52

1 files changed, 3 insertions, 11 deletions

diff --git a/compiler/rustc_mir/src/interpret/memory.rs b/compiler/rustc_mir/src/interpret/memory.rs
index fe5ebf0b6fe..3648748a909 100644
--- a/compiler/rustc_mir/src/interpret/memory.rs
+++ b/compiler/rustc_mir/src/interpret/memory.rs
@@ -854,11 +854,7 @@ impl<'mir, 'tcx, M: Machine<'mir, 'tcx>> Memory<'mir, 'tcx, M> {
             Some(ptr) => ptr,
             None => {
                 // zero-sized access
-                assert_matches!(
-                    src.next(),
-                    None,
-                    "iterator said it was empty but returned an element"
-                );
+                assert!(src.next().is_none(), "iterator said it was empty but returned an element");
                 return Ok(());
             }
         };
@@ -884,11 +880,7 @@ impl<'mir, 'tcx, M: Machine<'mir, 'tcx>> Memory<'mir, 'tcx, M> {
             Some(ptr) => ptr,
             None => {
                 // zero-sized access
-                assert_matches!(
-                    src.next(),
-                    None,
-                    "iterator said it was empty but returned an element"
-                );
+                assert!(src.next().is_none(), "iterator said it was empty but returned an element");
                 return Ok(());
             }
         };
@@ -902,7 +894,7 @@ impl<'mir, 'tcx, M: Machine<'mir, 'tcx>> Memory<'mir, 'tcx, M> {
             let offset_ptr = ptr.offset(Size::from_bytes(idx) * 2, &tcx)?; // `Size` multiplication
             allocation.write_scalar(&tcx, offset_ptr, val.into(), Size::from_bytes(2))?;
         }
-        assert_matches!(src.next(), None, "iterator was longer than it said it would be");
+        assert!(src.next().is_none(), "iterator was longer than it said it would be");
         Ok(())
     }